And in today’s update, they’ve added two major features appealing to enterprise and power users.

First up, the application now lets you set up multiple Yahoo Mail accounts on your iPhone, iPod touch or iPad and quickly switch between them without ever signing out…

Yahoo Mail version 1.5.5 also adds support for Business Mail accounts.

This feature allows Yahoo’s Small Business customers to access their email natively through an iOS device while enjoying such capabilities as push notifications, Yahoo contacts integration and support for photo attachments.